/* MUSEX X-OS — mobile-first private messenger interface */
:root {
  --xos-app-height: 100dvh;
  --x-bg: #05070b;
  --x-panel: #0a0d14;
  --x-panel-2: #101621;
  --x-panel-3: #161e2c;
  --x-hover: #192437;
  --x-line: rgba(145, 170, 211, .13);
  --x-line-hot: rgba(72, 139, 255, .44);
  --x-blue: #2a7dff;
  --x-cyan: #45dcff;
  --x-violet: #8a5cff;
  --x-coral: #ff657c;
  --x-green: #29df88;
  --x-text: #f7f9fd;
  --x-soft: #c5cfdd;
  --x-muted: #75849a;
  --x-shadow: 0 24px 70px rgba(0, 0, 0, .48);
  --x-cut: polygon(0 0, calc(100% - 11px) 0, 100% 11px, 100% 100%, 11px 100%, 0 calc(100% - 11px));

  --bg: var(--x-bg);
  --panel: var(--x-panel);
  --panel-2: var(--x-panel-2);
  --panel-3: var(--x-panel-3);
  --panel-hover: var(--x-hover);
  --selected: rgba(42, 125, 255, .14);
  --chat-bg: #070a10;
  --bubble-in: #121927;
  --bubble-out: #16468d;
  --accent: var(--x-blue);
  --accent-strong: #1568e7;
  --accent-soft: rgba(42, 125, 255, .13);
  --receipt: var(--x-cyan);
  --text: var(--x-text);
  --text-soft: var(--x-soft);
  --muted: var(--x-muted);
  --muted-2: #59677a;
  --line: var(--x-line);
  --line-strong: var(--x-line-hot);
  --icon: #8c9bb0;
  --sidebar-width: 340px;
}

html[data-theme="light"] {
  --x-bg: #e8eef8;
  --x-panel: #fbfcff;
  --x-panel-2: #eff3fa;
  --x-panel-3: #e4ebf5;
  --x-hover: #e8f0fb;
  --x-line: rgba(27, 53, 90, .12);
  --x-line-hot: rgba(20, 99, 218, .34);
  --x-blue: #0968dc;
  --x-cyan: #008ca9;
  --x-violet: #6c42df;
  --x-coral: #d93d59;
  --x-green: #079d5a;
  --x-text: #101826;
  --x-soft: #34445b;
  --x-muted: #687991;
  --x-shadow: 0 22px 55px rgba(38, 62, 96, .17);

  --bg: var(--x-bg);
  --panel: var(--x-panel);
  --panel-2: var(--x-panel-2);
  --panel-3: var(--x-panel-3);
  --panel-hover: var(--x-hover);
  --selected: #dceaff;
  --chat-bg: #edf3fb;
  --bubble-in: #fff;
  --bubble-out: #dbeaff;
  --accent: var(--x-blue);
  --accent-strong: #075aba;
  --accent-soft: rgba(9, 104, 220, .1);
  --receipt: #0968dc;
  --text: var(--x-text);
  --text-soft: var(--x-soft);
  --muted: var(--x-muted);
  --muted-2: #8390a2;
  --line: var(--x-line);
  --line-strong: var(--x-line-hot);
  --icon: #617187;
}

html,
body {
  width: 100%;
  height: var(--xos-app-height);
  min-height: 0;
  background: var(--x-bg);
  overscroll-behavior: none;
}

body { letter-spacing: -.01em; }
button, input, textarea { touch-action: manipulation; }

.xos-icon {
  width: 20px;
  height: 20px;
  display: block;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Login */
#matrixCanvas {
  background:
    linear-gradient(120deg, transparent 15%, rgba(42, 125, 255, .04) 15.2% 15.6%, transparent 15.8%),
    linear-gradient(60deg, transparent 72%, rgba(138, 92, 255, .05) 72.2% 72.6%, transparent 72.8%),
    radial-gradient(circle at 19% 18%, rgba(42, 125, 255, .2), transparent 26%),
    radial-gradient(circle at 80% 75%, rgba(138, 92, 255, .15), transparent 31%),
    linear-gradient(145deg, #030509, #080c13 55%, #050a12);
}

html[data-theme="light"] #matrixCanvas {
  background:
    radial-gradient(circle at 18% 18%, rgba(42, 125, 255, .15), transparent 27%),
    radial-gradient(circle at 80% 75%, rgba(138, 92, 255, .1), transparent 31%),
    linear-gradient(145deg, #f2f6fd, #e6edf7);
}

.auth-card {
  width: min(455px, 100%);
  padding: 42px 38px 36px;
  border: 1px solid var(--x-line);
  border-radius: 0;
  clip-path: var(--x-cut);
  background: color-mix(in srgb, var(--x-panel) 95%, transparent);
  box-shadow: var(--x-shadow);
  backdrop-filter: blur(20px);
}

.brand-mark {
  width: 88px;
  height: 88px;
  border: 1px solid rgba(71, 141, 255, .34);
  border-radius: 0;
  clip-path: var(--x-cut);
  background:
    linear-gradient(45deg, transparent 42%, #6b48ff 43% 56%, transparent 57%),
    linear-gradient(-45deg, transparent 42%, #2a91ff 43% 56%, transparent 57%),
    #080d16;
  box-shadow: 0 20px 60px rgba(29, 93, 218, .29), inset 0 1px rgba(255, 255, 255, .06);
}
.brand-mark::before { content: ""; }
.auth-card h1 { text-transform: uppercase; letter-spacing: .03em; }
.auth-card > p { letter-spacing: .02em; }
.neon-divider { height: 2px; background: linear-gradient(90deg, transparent, var(--x-blue), var(--x-violet), transparent); opacity: .7; }
.btn { border-radius: 0; clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px)); }

/* X logo */
.xos-xmark {
  width: 42px;
  height: 42px;
  display: block;
  position: relative;
  flex: 0 0 auto;
  filter: drop-shadow(0 0 12px rgba(54, 132, 255, .5));
}
.xos-xmark i {
  position: absolute;
  left: 18px;
  top: 4px;
  width: 7px;
  height: 34px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--x-cyan), var(--x-blue));
  transform: rotate(43deg);
}
.xos-xmark i + i { background: linear-gradient(180deg, #b274ff, #7044ff); transform: rotate(-43deg); }
.xos-xmark b { position: absolute; inset: 15px; border: 2px solid #fff; border-radius: 50%; box-shadow: 0 0 12px rgba(255,255,255,.5); }
.xos-brand-copy { min-width: 0; text-align: left; }
.xos-brand-copy strong,
.xos-brand-copy small { display: block; line-height: 1.05; white-space: nowrap; }
.xos-brand-copy strong { color: var(--x-text); font-size: .93rem; letter-spacing: .11em; }
.xos-brand-copy small { margin-top: 4px; color: var(--x-muted); font-size: .55rem; font-weight: 700; letter-spacing: .13em; }

/* Desktop shell */
.app-shell {
  width: 100%;
  height: var(--xos-app-height);
  min-height: 0;
  display: grid;
  grid-template-columns: 86px minmax(300px, 344px) minmax(420px, 1fr) minmax(240px, 284px);
  grid-template-rows: 72px minmax(0, 1fr) 82px;
  grid-template-areas:
    "rail topbar topbar topbar"
    "rail sidebar chat inspector"
    "rail dock dock inspector";
  gap: 1px;
  overflow: hidden;
  background: var(--x-line);
}
.xos-rail { grid-area: rail; }
.xos-topbar { grid-area: topbar; }
.sidebar { grid-area: sidebar; }
.chat-pane { grid-area: chat; }
.xos-inspector { grid-area: inspector; }
.xos-dock { grid-area: dock; }
.xos-mobile-head,
.xos-mobile-dock,
.xos-mobile-modules { display: none; }

.xos-topbar {
  min-width: 0;
  display: grid;
  grid-template-columns: 235px minmax(380px, 1fr) auto;
  align-items: center;
  gap: 16px;
  padding: 9px 15px 9px 18px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--x-line);
  background:
    linear-gradient(100deg, rgba(42, 125, 255, .08), transparent 35%),
    var(--x-panel);
}
.xos-topbar::after {
  content: "";
  position: absolute;
  left: 235px;
  right: 140px;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--x-cyan), var(--x-blue), var(--x-violet), transparent);
  animation: xosScan 5s ease-in-out infinite;
}
.xos-brand,
.xos-mobile-brand { display: flex; align-items: center; gap: 10px; border: 0; background: transparent; color: inherit; cursor: pointer; }
.xos-live-line { min-width: 0; display: grid; grid-template-columns: repeat(3, minmax(120px, 1fr)); gap: 7px; }
.xos-live-chip {
  min-width: 0;
  height: 45px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-content: center;
  gap: 1px 8px;
  padding: 7px 10px;
  border: 1px solid var(--x-line);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
  background: var(--x-panel-2);
}
.xos-live-chip > i { grid-row: 1/3; width: 7px; height: 7px; align-self: center; border-radius: 50%; background: var(--x-green); box-shadow: 0 0 10px rgba(41, 223, 136, .65); animation: xosPulse 1.9s ease infinite; }
.xos-live-chip b { overflow: hidden; color: var(--x-soft); font-size: .57rem; letter-spacing: .1em; text-overflow: ellipsis; white-space: nowrap; }
.xos-live-chip em { overflow: hidden; color: var(--x-muted); font-size: .55rem; font-style: normal; text-overflow: ellipsis; white-space: nowrap; }
.xos-top-actions { display: flex; align-items: center; gap: 5px; }
.xos-top-actions button,
.xos-mobile-head > div button {
  height: 38px;
  min-width: 38px;
  display: grid;
  place-items: center;
  position: relative;
  border: 1px solid var(--x-line);
  border-radius: 0;
  clip-path: polygon(0 0, calc(100% - 7px) 0, 100% 7px, 100% 100%, 7px 100%, 0 calc(100% - 7px));
  background: var(--x-panel-2);
  color: var(--x-muted);
  cursor: pointer;
  transition: .18s ease;
}
.xos-top-actions button:hover { color: var(--x-text); border-color: var(--x-line-hot); transform: translateY(-1px); }
.xos-top-actions kbd { margin-left: 4px; border: 0; background: transparent; color: var(--x-muted); font-size: .56rem; }

/* X deck */
.xos-rail {
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 11px 7px;
  overflow-y: auto;
  border-right: 1px solid var(--x-line);
  background:
    radial-gradient(circle at 50% 4%, rgba(42, 125, 255, .18), transparent 20%),
    var(--x-panel);
  scrollbar-width: none;
}
.xos-rail::-webkit-scrollbar { display: none; }
.xos-rail-title { padding: 4px 0 7px; color: var(--x-muted); font-size: .51rem; font-weight: 850; letter-spacing: .16em; text-align: center; }
.xos-module {
  width: 100%;
  min-height: 58px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  position: relative;
  border: 1px solid transparent;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
  background: transparent;
  color: var(--x-muted);
  cursor: pointer;
  transition: .18s ease;
}
.xos-module > span { width: 28px; height: 28px; display: grid; place-items: center; background: var(--x-panel-2); }
.xos-module .xos-icon { width: 17px; height: 17px; }
.xos-module b { font-size: .56rem; font-weight: 690; }
.xos-module > i { position: absolute; left: 0; top: 9px; bottom: 9px; width: 2px; background: var(--x-cyan); box-shadow: 0 0 12px var(--x-blue); opacity: 0; }
.xos-module:hover { color: var(--x-soft); background: rgba(255,255,255,.025); }
.xos-module.active { border-color: rgba(54, 127, 255, .34); background: linear-gradient(145deg, rgba(36, 108, 231, .22), rgba(119, 70, 226, .1)); color: var(--x-text); }
.xos-module.active > span { color: #68b6ff; background: rgba(42, 125, 255, .16); }
.xos-module.active > i { opacity: 1; }
.xos-rail-foot { margin-top: auto; display: grid; place-items: center; gap: 3px; padding-top: 8px; color: var(--x-green); }
.xos-rail-foot .xos-icon { width: 18px; }
.xos-rail-foot span { color: var(--x-muted); font-size: .5rem; line-height: 1.3; text-align: center; }

/* Existing sidebar transformed */
.sidebar { min-height: 0; border-right: 1px solid var(--x-line); background: var(--x-panel); }
.sidebar-header,
.chat-header { min-height: 61px; padding: 8px 11px; border-bottom-color: var(--x-line); background: var(--x-panel); }
.profile-chip { padding: 5px; border-radius: 0; clip-path: polygon(0 0, calc(100% - 7px) 0, 100% 7px, 100% 100%, 0 100%); }
.profile-chip:hover { background: var(--x-hover); }
.avatar { box-shadow: 0 0 0 2px var(--x-panel), 0 0 0 3px rgba(63, 137, 255, .3); }
.profile-copy strong { color: var(--x-text); }
.profile-copy small { color: var(--x-green); }
.icon-btn { border-radius: 0; color: var(--x-muted); }
.icon-btn:hover { background: var(--x-hover); color: var(--x-text); }
.sidebar-title-row { padding: 14px 13px 7px; background: var(--x-panel); }
.sidebar-title-row h2 { font-size: 1.02rem; font-weight: 800; letter-spacing: .02em; text-transform: uppercase; }
.sidebar-title-status { border-radius: 0; background: rgba(41, 223, 136, .1); color: var(--x-green); }
.search-zone { padding: 8px 10px; border-bottom-color: var(--x-line); }
.search-box,
.new-group-btn { border: 1px solid var(--x-line); border-radius: 0; clip-path: polygon(0 0, calc(100% - 7px) 0, 100% 7px, 100% 100%, 7px 100%, 0 calc(100% - 7px)); background: var(--x-panel-2); }
.search-box:focus-within { border-color: var(--x-line-hot); box-shadow: 0 0 0 3px rgba(42, 125, 255, .08); }
.sidebar-tabs { padding: 7px 10px 9px; border-bottom-color: var(--x-line); }
.tab-btn { height: 29px; border-radius: 0; clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 0 100%); }
.tab-btn.active { color: #fff; background: linear-gradient(130deg, var(--x-blue), #5d5cff); box-shadow: 0 7px 18px rgba(30, 96, 220, .25); }
.chat-item { min-height: 68px; padding: 8px 10px; border-bottom-color: rgba(134, 161, 201, .06); transition: .14s ease; }
.chat-item:hover { background: var(--x-hover); }
.chat-item.active { position: relative; background: linear-gradient(90deg, rgba(42, 125, 255, .18), rgba(90, 75, 213, .05)); box-shadow: inset 3px 0 var(--x-blue); }
.chat-item.active::after { content: ""; position: absolute; right: 4px; top: 9px; width: 6px; height: 6px; background: var(--x-cyan); transform: rotate(45deg); box-shadow: 0 0 10px var(--x-cyan); }
.chat-item .avatar { width: 44px; height: 44px; }
.chat-item-top strong { font-size: .84rem; }
.chat-preview { font-size: .74rem; }
.unread-badge { min-width: 18px; height: 18px; border-radius: 4px; background: var(--x-blue); color: #fff; }
.xos-ghost-mode .chat-preview { filter: blur(5px); opacity: .55; transition: .15s ease; }
.xos-ghost-mode .chat-item:hover .chat-preview,
.xos-ghost-mode .chat-item:focus .chat-preview { filter: none; opacity: 1; }
.xos-compact-mode .chat-item { min-height: 57px; }
.xos-compact-mode .chat-item .avatar { width: 37px; height: 37px; }

/* Conversation surface */
.chat-pane {
  min-height: 0;
  background:
    linear-gradient(125deg, transparent 19%, rgba(63, 128, 235, .035) 19.2% 19.4%, transparent 19.6%),
    linear-gradient(55deg, transparent 78%, rgba(139, 92, 255, .035) 78.2% 78.4%, transparent 78.6%),
    radial-gradient(circle at 86% 14%, rgba(42, 125, 255, .08), transparent 27%),
    linear-gradient(rgba(6, 9, 14, .96), rgba(6, 9, 14, .98)),
    var(--chat-bg);
}
html[data-theme="light"] .chat-pane {
  background:
    linear-gradient(125deg, transparent 19%, rgba(42, 100, 190, .05) 19.2% 19.4%, transparent 19.6%),
    radial-gradient(circle at 86% 14%, rgba(42, 125, 255, .07), transparent 27%),
    linear-gradient(rgba(239, 245, 253, .97), rgba(234, 241, 250, .99)),
    var(--chat-bg);
}
.active-chat { min-height: 0; }
.chat-header { z-index: 30; box-shadow: 0 1px var(--x-line); }
.chat-header .avatar { width: 40px; height: 40px; }
.chat-header-copy strong { font-size: .9rem; }
.chat-header-copy small { font-size: .68rem; }
.chat-header-actions .icon-btn { width: 35px; height: 35px; clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 6px 100%, 0 calc(100% - 6px)); }
.empty-logo { width: 94px; height: 94px; border: 1px solid var(--x-line-hot); border-radius: 0; clip-path: var(--x-cut); background: linear-gradient(145deg, rgba(42,125,255,.2), rgba(138,92,255,.12)), var(--x-panel-2); box-shadow: 0 25px 70px rgba(23, 88, 205, .24); }
.empty-logo::before { content: "XX"; color: var(--x-blue); font-size: 30px; letter-spacing: -.2em; transform: translateX(-3px); }
.empty-state h2 { text-transform: uppercase; letter-spacing: .06em; }
.messages-scroller { min-height: 0; padding: 17px clamp(11px, 3.2vw, 44px) 20px; }
.messages { width: min(100%, 920px); gap: 5px; }
.message-bubble { border: 1px solid rgba(130, 160, 203, .11); border-radius: 0; clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 7px 100%, 0 calc(100% - 7px)); box-shadow: 0 9px 25px rgba(0,0,0,.14), inset 0 1px rgba(255,255,255,.025); }
.message-row.received .message-bubble { border-left: 2px solid rgba(69, 220, 255, .55); }
.message-row.own .message-bubble { border-right: 2px solid #7d79ff; background: linear-gradient(145deg, #164d98, #113c78); }
html[data-theme="light"] .message-row.own .message-bubble { background: linear-gradient(145deg, #e3efff, #d5e7ff); }
.sender-name { color: #75b9ff; }
.reply-quote { border-left-color: var(--x-cyan); background: rgba(42, 125, 255, .11); }
.message-reactions { border-color: var(--x-line); border-radius: 3px; background: var(--x-panel-2); }
.message-meta { color: rgba(201, 217, 239, .59); }
html[data-theme="light"] .message-meta { color: #6b7c93; }
.file-card { border-color: var(--x-line); border-radius: 0; background: rgba(0,0,0,.12); }
.typing-indicator { border: 1px solid var(--x-line); border-radius: 0; background: var(--x-panel-2); }
.typing-indicator span { background: var(--x-cyan); }
.pinned-message-bar { border-left-color: var(--x-violet); background: var(--x-panel); }
.reply-bar,
.attachment-preview { border-color: var(--x-line); background: var(--x-panel); }
.composer { min-height: 65px; gap: 6px; padding: 9px 9px max(9px, var(--safe-bottom)); border-top-color: var(--x-line); background: color-mix(in srgb, var(--x-panel) 97%, transparent); box-shadow: 0 -14px 35px rgba(0,0,0,.15); }
.composer-tools { padding: 0 2px; border: 1px solid var(--x-line); background: var(--x-panel-2); clip-path: polygon(0 0, calc(100% - 7px) 0, 100% 7px, 100% 100%, 7px 100%, 0 calc(100% - 7px)); }
.composer-tools .icon-btn { width: 34px; height: 41px; }
.composer textarea { min-height: 43px; border: 1px solid var(--x-line); border-radius: 0; clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px)); background: var(--x-panel-2); }
.composer textarea:focus { border-color: var(--x-line-hot); box-shadow: inset 0 0 0 1px rgba(42,125,255,.12); }
.send-btn { width: 43px; height: 43px; border-radius: 0; clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 9px 100%, 0 calc(100% - 9px)); background: linear-gradient(145deg, var(--x-blue), #6151ec); box-shadow: 0 9px 25px rgba(33, 99, 225, .3); }
.voice-recording { display: inline-grid !important; color: #fff !important; background: var(--x-coral) !important; box-shadow: 0 0 0 6px rgba(255,101,124,.12), 0 0 20px rgba(255,101,124,.35); }

.xos-voice-hud { min-height: 50px; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 10px; padding: 8px 12px; border-top: 1px solid rgba(255,101,124,.26); background: linear-gradient(90deg, rgba(255,101,124,.11), transparent), var(--x-panel); color: var(--x-coral); }
.xos-voice-hud > i { width: 9px; height: 9px; border-radius: 50%; background: var(--x-coral); box-shadow: 0 0 13px var(--x-coral); animation: xosPulse 1s ease infinite; }
.xos-voice-hud strong,
.xos-voice-hud small { display: block; }
.xos-voice-hud strong { color: var(--x-soft); font-size: .7rem; }
.xos-voice-hud small { margin-top: 3px; color: var(--x-muted); font-size: .58rem; }
.xos-voice-hud > div { height: 22px; display: flex; align-items: center; gap: 3px; }
.xos-voice-hud > div b { width: 3px; height: 7px; background: var(--x-coral); animation: xosVoice .65s ease-in-out infinite alternate; }
.xos-voice-hud > div b:nth-child(2) { animation-delay: .08s; }
.xos-voice-hud > div b:nth-child(3) { animation-delay: .16s; }
.xos-voice-hud > div b:nth-child(4) { animation-delay: .24s; }
.xos-voice-hud > div b:nth-child(5) { animation-delay: .32s; }
.xos-voice-hud > div b:nth-child(6) { animation-delay: .4s; }

/* Inspector */
.xos-inspector { min-width: 0; min-height: 0; display: flex; flex-direction: column; border-left: 1px solid var(--x-line); background: var(--x-panel); }
.xos-inspector > header { min-height: 61px; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 12px; border-bottom: 1px solid var(--x-line); }
.xos-inspector > header span { min-width: 0; }
.xos-inspector > header small,
.xos-inspector > header strong { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.xos-inspector > header small { color: var(--x-muted); font-size: .52rem; font-weight: 800; letter-spacing: .11em; }
.xos-inspector > header strong { margin-top: 4px; font-size: .72rem; }
.xos-signal { display: flex; align-items: flex-end; gap: 2px; }
.xos-signal b { width: 2px; height: 7px; background: var(--x-green); animation: xosVoice .7s ease infinite alternate; }
.xos-signal b:nth-child(2) { height: 13px; animation-delay: .12s; }
.xos-signal b:nth-child(3) { height: 9px; animation-delay: .24s; }
.xos-inspector-tabs { height: 42px; display: grid; grid-template-columns: repeat(3, 1fr); border-bottom: 1px solid var(--x-line); }
.xos-inspector-tabs button { border: 0; border-bottom: 2px solid transparent; background: transparent; color: var(--x-muted); cursor: pointer; font-size: .65rem; font-weight: 700; }
.xos-inspector-tabs button.active { color: var(--x-cyan); border-bottom-color: var(--x-blue); }
.xos-inspector-scroll { flex: 1; min-height: 0; overflow: auto; }
.xos-inspector-view { display: none; padding: 11px; }
.xos-inspector-view.active { display: block; animation: xosView .2s ease both; }
.xos-privacy-score { display: flex; gap: 10px; padding: 12px; border: 1px solid rgba(41,223,136,.2); clip-path: var(--x-cut); background: linear-gradient(135deg, rgba(41,223,136,.1), transparent), var(--x-panel-2); }
.xos-privacy-score > span { width: 34px; height: 34px; display: grid; place-items: center; flex: 0 0 auto; color: var(--x-green); }
.xos-privacy-score small,
.xos-privacy-score strong,
.xos-privacy-score em { display: block; }
.xos-privacy-score small { color: var(--x-green); font-size: .5rem; font-weight: 850; letter-spacing: .1em; }
.xos-privacy-score strong { margin-top: 3px; font-size: .69rem; }
.xos-privacy-score em { margin-top: 4px; color: var(--x-muted); font-size: .56rem; font-style: normal; line-height: 1.4; }
.xos-toggle-card,
.xos-action-card { width: 100%; min-height: 60px; margin-top: 7px; display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 9px 10px; border: 1px solid var(--x-line); clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%); background: var(--x-panel-2); color: var(--x-soft); text-align: left; cursor: pointer; }
.xos-toggle-card > span { min-width: 0; display: grid; grid-template-columns: auto minmax(0,1fr); column-gap: 8px; }
.xos-toggle-card .xos-icon { grid-row: 1/3; align-self: center; color: var(--x-muted); }
.xos-toggle-card b,
.xos-toggle-card small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.xos-toggle-card b { font-size: .67rem; }
.xos-toggle-card small { color: var(--x-muted); font-size: .54rem; }
.xos-toggle-card > i { width: 31px; height: 17px; flex: 0 0 auto; position: relative; border: 1px solid var(--x-line); border-radius: 20px; background: var(--x-panel-3); }
.xos-toggle-card > i::after { content: ""; position: absolute; width: 11px; height: 11px; left: 2px; top: 2px; border-radius: 50%; background: var(--x-muted); transition: .18s ease; }
.xos-toggle-card.active { border-color: rgba(42,125,255,.33); }
.xos-toggle-card.active > i { background: rgba(42,125,255,.22); }
.xos-toggle-card.active > i::after { left: 15px; background: var(--x-cyan); box-shadow: 0 0 8px var(--x-cyan); }
.xos-action-card { justify-content: flex-start; }
.xos-action-card > .xos-icon { color: var(--x-violet); }
.xos-action-card span { flex: 1; min-width: 0; }
.xos-action-card b,
.xos-action-card small { display: block; }
.xos-action-card b { font-size: .67rem; }
.xos-action-card small { margin-top: 3px; color: var(--x-muted); font-size: .54rem; }
.xos-action-card em { color: var(--x-violet); font-size: .51rem; font-style: normal; font-weight: 800; }
.xos-section-title { min-height: 30px; display: flex; align-items: center; justify-content: space-between; }
.xos-section-title strong { font-size: .67rem; text-transform: uppercase; letter-spacing: .06em; }
.xos-section-title span { color: var(--x-muted); font-size: .6rem; }
.xos-media-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 5px; margin-bottom: 13px; }
.xos-media-grid > p,
.xos-file-list > p { grid-column: 1/-1; color: var(--x-muted); font-size: .61rem; line-height: 1.5; }
.xos-media-cell { aspect-ratio: 1.45; display: grid; place-items: center; padding: 0; overflow: hidden; border: 1px solid var(--x-line); background: var(--x-panel-2); color: var(--x-muted); cursor: pointer; }
.xos-media-cell img { width: 100%; height: 100%; object-fit: cover; }
.xos-file-item { display: flex; align-items: center; gap: 8px; padding: 9px 5px; border-bottom: 1px solid var(--x-line); color: var(--x-soft); text-decoration: none; }
.xos-file-item > .xos-icon { color: var(--x-blue); }
.xos-file-item span { min-width: 0; }
.xos-file-item b,
.xos-file-item small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.xos-file-item b { font-size: .63rem; }
.xos-file-item small { margin-top: 3px; color: var(--x-muted); font-size: .53rem; }
.xos-person-card { display: flex; align-items: center; gap: 9px; padding: 11px; border: 1px solid var(--x-line); background: var(--x-panel-2); }
.xos-person-card img { width: 43px; height: 43px; border-radius: 50%; object-fit: cover; background: var(--x-panel-3); }
.xos-person-card span { min-width: 0; flex: 1; }
.xos-person-card strong,
.xos-person-card small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.xos-person-card strong { font-size: .69rem; }
.xos-person-card small { margin-top: 4px; color: var(--x-muted); font-size: .56rem; }
.xos-person-card > i { width: 7px; height: 7px; border-radius: 50%; background: var(--x-green); box-shadow: 0 0 8px var(--x-green); }
.xos-capability-list p { display: flex; gap: 9px; margin: 0; padding: 10px 2px; border-bottom: 1px solid var(--x-line); }
.xos-capability-list .xos-icon { color: var(--x-cyan); }
.xos-capability-list b,
.xos-capability-list small { display: block; }
.xos-capability-list b { font-size: .64rem; }
.xos-capability-list small { margin-top: 3px; color: var(--x-muted); font-size: .53rem; }

/* Command dock */
.xos-dock { min-width: 0; display: grid; grid-template-columns: 125px repeat(5, minmax(105px,1fr)); gap: 7px; padding: 9px 11px; border-top: 1px solid var(--x-line); background: var(--x-panel); }
.xos-dock-label { display: flex; flex-direction: column; justify-content: center; padding: 0 6px; }
.xos-dock-label small { color: var(--x-violet); font-size: .52rem; font-weight: 850; letter-spacing: .12em; }
.xos-dock-label strong { margin-top: 5px; color: var(--x-muted); font-size: .62rem; }
.xos-dock > button { min-width: 0; display: flex; align-items: center; gap: 8px; padding: 8px; border: 1px solid var(--x-line); clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px)); background: var(--x-panel-2); color: var(--x-soft); cursor: pointer; text-align: left; transition: .17s ease; }
.xos-dock > button:hover { border-color: var(--x-line-hot); transform: translateY(-2px); background: var(--x-hover); }
.xos-dock > button > .xos-icon { width: 30px; height: 30px; padding: 7px; color: #6ab3ff; background: rgba(42,125,255,.14); }
.xos-dock > button:last-child > .xos-icon { color: var(--x-coral); background: rgba(255,101,124,.12); }
.xos-dock > button span { min-width: 0; }
.xos-dock > button b,
.xos-dock > button small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.xos-dock > button b { font-size: .63rem; }
.xos-dock > button small { margin-top: 3px; color: var(--x-muted); font-size: .52rem; }

/* Privacy shield */
.xos-screen-shield { position: fixed; inset: 0; z-index: 10000; display: grid; place-items: center; padding: 18px; background: radial-gradient(circle at 50% 35%, rgba(42,125,255,.17), transparent 32%), rgba(3,5,8,.97); color: #f7f9fd; }
.xos-shield-card { width: min(430px,100%); padding: 32px; border: 1px solid rgba(84,147,255,.32); clip-path: var(--x-cut); background: #0a0e16; box-shadow: 0 30px 90px rgba(0,0,0,.62); text-align: center; }
.xos-shield-logo { display: flex; align-items: center; justify-content: center; gap: 10px; margin-bottom: 26px; }
.xos-shield-card > span { width: 68px; height: 68px; margin: 0 auto; display: grid; place-items: center; color: var(--x-green); border: 1px solid rgba(41,223,136,.25); background: rgba(41,223,136,.08); }
.xos-shield-card > span .xos-icon { width: 31px; height: 31px; }
.xos-shield-card h2 { margin: 17px 0 0; font-size: 1.25rem; text-transform: uppercase; letter-spacing: .06em; }
.xos-shield-card p { margin: 10px auto 22px; color: #8290a3; line-height: 1.55; font-size: .8rem; }
.xos-shield-card button { min-height: 44px; padding: 0 18px; border: 0; clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px)); background: linear-gradient(135deg,#277dff,#7151ed); color: #fff; font-weight: 750; cursor: pointer; }

/* Command palette */
.xos-command-palette { width: min(580px, calc(100vw - 22px)); padding: 0; border: 0; background: transparent; color: var(--x-text); }
.xos-command-palette::backdrop { background: rgba(2,4,7,.72); backdrop-filter: blur(7px); }
.xos-palette-card { border: 1px solid var(--x-line-hot); clip-path: var(--x-cut); background: var(--x-panel); box-shadow: var(--x-shadow); overflow: hidden; }
.xos-palette-card > header { height: 57px; display: flex; align-items: center; gap: 7px; padding: 7px; border-bottom: 1px solid var(--x-line); }
.xos-palette-card > header span { flex: 1; min-width: 0; display: flex; align-items: center; gap: 8px; padding: 0 9px; }
.xos-palette-card input { width: 100%; border: 0; outline: 0; background: transparent; color: var(--x-text); font-size: .9rem; }
.xos-palette-card > header button { width: 39px; height: 39px; display: grid; place-items: center; border: 0; background: var(--x-panel-2); color: var(--x-muted); cursor: pointer; }
.xos-command-list { max-height: min(480px,70dvh); padding: 7px; overflow: auto; }
.xos-command-list button { width: 100%; min-height: 59px; display: grid; grid-template-columns: auto minmax(0,1fr) auto; align-items: center; gap: 10px; padding: 9px 11px; border: 0; border-bottom: 1px solid var(--x-line); background: transparent; color: var(--x-soft); text-align: left; cursor: pointer; }
.xos-command-list button:hover { background: var(--x-hover); }
.xos-command-list button > .xos-icon { color: var(--x-blue); }
.xos-command-list b,
.xos-command-list small { display: block; }
.xos-command-list b { font-size: .75rem; }
.xos-command-list small { margin-top: 3px; color: var(--x-muted); font-size: .62rem; }
.xos-command-list kbd { min-width: 24px; padding: 4px; border: 1px solid var(--x-line); background: var(--x-panel-2); color: var(--x-muted); text-align: center; font-size: .58rem; }
.xos-toast { border-left: 3px solid var(--x-cyan); }

/* Dialog consistency */
.modal::backdrop { background: rgba(2,4,7,.76); backdrop-filter: blur(5px); }
.modal-card { border-color: var(--x-line); border-radius: 0; clip-path: var(--x-cut); background: var(--x-panel); box-shadow: var(--x-shadow); }
.modal-card input,
.modal-card textarea { border-radius: 0; border-color: var(--x-line); background: var(--x-panel-2); }
.settings-item { border-radius: 0; border-color: var(--x-line); background: var(--x-panel-2); }
.message-menu { border-radius: 0; border-color: var(--x-line); background: var(--x-panel); }

@keyframes xosScan { 0%,100% { transform: translateX(-12%); opacity: .2; } 50% { transform: translateX(12%); opacity: .85; } }
@keyframes xosPulse { 0%,100% { opacity: .45; transform: scale(.85); } 50% { opacity: 1; transform: scale(1.08); } }
@keyframes xosVoice { from { transform: scaleY(.45); } to { transform: scaleY(1); } }
@keyframes xosView { from { opacity: 0; transform: translateX(5px); } to { opacity: 1; transform: none; } }

@media (max-width: 1280px) {
  .app-shell { grid-template-columns: 78px minmax(285px,320px) minmax(400px,1fr) 250px; }
  .xos-topbar { grid-template-columns: 205px minmax(300px,1fr) auto; }
  .xos-live-chip:nth-child(2) { display: none; }
  .xos-live-line { grid-template-columns: repeat(2,minmax(125px,1fr)); }
  .xos-dock { grid-template-columns: repeat(5,1fr); }
  .xos-dock-label { display: none; }
  .xos-dock > button { gap: 5px; }
  .xos-dock > button > .xos-icon { width: 27px; height: 27px; }
}

@media (max-width: 1050px) and (min-width: 821px) {
  .app-shell { grid-template-columns: 72px minmax(285px,315px) minmax(390px,1fr); grid-template-areas: "rail topbar topbar" "rail sidebar chat" "rail dock dock"; }
  .xos-inspector { display: none; }
  .xos-topbar { grid-template-columns: 200px 1fr auto; }
  .xos-live-chip:nth-child(1) { display: none; }
  .xos-live-line { grid-template-columns: 1fr; }
}

/* Mobile is a separate interface, not a collapsed desktop clone */
@media (max-width: 820px) {
  html,
  body { position: fixed; inset: 0; width: 100%; height: var(--xos-app-height); min-height: 0; overflow: hidden; }

  .app-shell {
    position: fixed;
    inset: 0;
    width: 100%;
    height: var(--xos-app-height);
    min-height: 0;
    display: block;
    background: var(--x-bg);
    overflow: hidden;
  }
  .xos-topbar,
  .xos-rail,
  .xos-inspector,
  .xos-dock { display: none; }

  .xos-mobile-head {
    position: absolute;
    z-index: 80;
    left: 0;
    right: 0;
    top: 0;
    height: 58px;
    display: grid;
    grid-template-columns: minmax(0,1fr) auto auto;
    align-items: center;
    gap: 7px;
    padding: max(6px, env(safe-area-inset-top)) 8px 6px;
    border-bottom: 1px solid var(--x-line);
    background: color-mix(in srgb, var(--x-panel) 96%, transparent);
    backdrop-filter: blur(18px);
    transition: opacity .18s ease, transform .2s ease;
  }
  .xos-mobile-brand { min-width: 0; padding: 0; }
  .xos-mobile-brand .xos-xmark { width: 36px; height: 36px; }
  .xos-mobile-brand .xos-xmark i { left: 15px; top: 4px; width: 6px; height: 28px; }
  .xos-mobile-brand .xos-xmark b { inset: 13px; }
  .xos-mobile-brand .xos-brand-copy strong { font-size: .8rem; }
  .xos-mobile-brand .xos-brand-copy small { color: var(--x-cyan); }
  .xos-mobile-state { display: flex; align-items: center; gap: 4px; padding: 5px 6px; border: 1px solid rgba(41,223,136,.18); color: var(--x-green); font-size: .48rem; font-weight: 800; letter-spacing: .07em; }
  .xos-mobile-state i { width: 5px; height: 5px; border-radius: 50%; background: var(--x-green); box-shadow: 0 0 7px var(--x-green); }
  .xos-mobile-head > div { display: flex; gap: 3px; }
  .xos-mobile-head > div button { width: 34px; min-width: 34px; height: 34px; border: 0; background: transparent; }
  .xos-mobile-head > div .xos-icon { width: 18px; height: 18px; }

  .sidebar,
  .chat-pane { position: absolute; width: 100%; min-height: 0; transition: transform .22s cubic-bezier(.2,.8,.2,1), opacity .18s ease; }
  .sidebar { inset: 58px 0 0; height: calc(var(--xos-app-height) - 58px); padding-bottom: calc(67px + var(--safe-bottom)); z-index: 2; border: 0; transform: translateX(0); }
  .chat-pane { inset: 0; height: var(--xos-app-height); z-index: 4; transform: translateX(100%); padding: 0; }
  .app-shell.chat-open .sidebar { transform: translateX(-12%); opacity: 0; pointer-events: none; }
  .app-shell.chat-open .chat-pane { transform: translateX(0); }
  .app-shell.chat-open .xos-mobile-head { opacity: 0; transform: translateY(-12px); pointer-events: none; }
  .empty-chat { display: none; }

  .sidebar-header { display: none; }
  .xos-mobile-modules {
    min-height: 72px;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px;
    overflow-x: auto;
    border-bottom: 1px solid var(--x-line);
    background: var(--x-panel);
    scrollbar-width: none;
  }
  .xos-mobile-modules::-webkit-scrollbar { display: none; }
  .xos-mobile-modules button { min-width: 67px; height: 53px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px; border: 1px solid var(--x-line); clip-path: polygon(0 0, calc(100% - 7px) 0, 100% 7px, 100% 100%, 7px 100%, 0 calc(100% - 7px)); background: var(--x-panel-2); color: var(--x-muted); font-size: .53rem; cursor: pointer; }
  .xos-mobile-modules button.active { border-color: rgba(42,125,255,.38); color: var(--x-cyan); background: linear-gradient(145deg,rgba(42,125,255,.2),rgba(138,92,255,.08)); }
  .xos-mobile-modules .xos-icon { width: 18px; height: 18px; }
  .sidebar-title-row { padding-top: 10px; }
  .chat-list { padding-bottom: 4px; }

  .xos-mobile-dock {
    position: absolute;
    z-index: 75;
    left: 7px;
    right: 7px;
    bottom: max(6px, var(--safe-bottom));
    height: 58px;
    display: grid;
    grid-template-columns: repeat(5,1fr);
    align-items: center;
    padding: 4px;
    border: 1px solid var(--x-line);
    clip-path: polygon(0 0, calc(100% - 11px) 0, 100% 11px, 100% 100%, 11px 100%, 0 calc(100% - 11px));
    background: color-mix(in srgb, var(--x-panel) 95%, transparent);
    box-shadow: 0 16px 42px rgba(0,0,0,.35);
    backdrop-filter: blur(18px);
    transition: opacity .18s ease, transform .2s ease;
  }
  .app-shell.chat-open .xos-mobile-dock,
  .xos-keyboard-visible .xos-mobile-dock,
  .xos-composer-focus .xos-mobile-dock { opacity: 0; pointer-events: none; transform: translateY(17px); }
  .xos-mobile-dock button { height: 47px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px; border: 0; background: transparent; color: var(--x-muted); font-size: .53rem; cursor: pointer; }
  .xos-mobile-dock button.active { color: var(--x-cyan); }
  .xos-mobile-dock .xos-icon { width: 18px; height: 18px; }
  .xos-mobile-create { color: #fff !important; }
  .xos-mobile-create .xos-icon { width: 35px; height: 35px; margin-top: -19px; padding: 8px; background: linear-gradient(145deg,var(--x-blue),var(--x-violet)); box-shadow: 0 9px 22px rgba(40,99,220,.4); clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px)); }

  /* Chat header always occupies row 1 and never scrolls behind the keyboard */
  .active-chat { width: 100%; height: var(--xos-app-height); min-height: 0; display: flex; flex-direction: column; overflow: hidden; }
  .chat-header { position: relative; top: 0; min-height: 59px; flex: 0 0 auto; padding: max(7px, env(safe-area-inset-top)) 7px 7px; z-index: 40; background: color-mix(in srgb, var(--x-panel) 98%, transparent); backdrop-filter: blur(16px); }
  .chat-header .mobile-only { display: inline-grid; }
  .chat-header .avatar { width: 38px; height: 38px; }
  .chat-header-copy { min-width: 0; }
  .chat-header-copy strong { font-size: .83rem; }
  .chat-header-copy small { max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: .61rem; }
  .chat-header-actions { flex: 0 0 auto; }
  .chat-header-actions .icon-btn { width: 33px; height: 35px; }
  .chat-header-actions #pinChatBtn { display: none; }
  .message-search-bar,
  .pinned-message-bar,
  .reply-bar,
  .attachment-preview { flex: 0 0 auto; }
  .messages-scroller { flex: 1 1 auto; min-height: 0; overflow-y: auto; padding: 11px 7px 13px; }
  .messages { width: 100%; }
  .message-bubble { max-width: 90%; }
  .message-bubble:has(.message-media) { max-width: 92%; }
  .composer { min-height: 59px; flex: 0 0 auto; gap: 3px; padding: 7px 6px max(7px,var(--safe-bottom)); z-index: 45; }
  .composer textarea { min-height: 42px; max-height: 104px; padding: 10px; font-size: 16px; line-height: 1.32; }
  .composer-tools { border: 0; clip-path: none; background: transparent; }
  .composer-tools .icon-btn { width: 33px; height: 40px; }
  .composer-tools #timerBtn,
  .composer-tools #scheduleBtn { display: none; }
  .composer-tools #voiceBtn { display: inline-grid !important; }
  .send-btn { width: 42px; height: 42px; }
  .xos-voice-hud { flex: 0 0 auto; min-height: 48px; padding: 7px 9px; }
  .xos-voice-hud small { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .emoji-panel,
  .timer-panel { left: 6px; bottom: calc(61px + var(--safe-bottom)); }
  .jump-bottom { bottom: calc(71px + var(--safe-bottom)); }

  .xos-keyboard-visible .active-chat,
  .xos-composer-focus .active-chat { height: var(--xos-app-height); }
  .xos-keyboard-visible .chat-header,
  .xos-composer-focus .chat-header { min-height: 55px; padding-top: 6px; }
  .xos-keyboard-visible .chat-header .avatar,
  .xos-composer-focus .chat-header .avatar { width: 35px; height: 35px; }
  .xos-keyboard-visible .composer,
  .xos-composer-focus .composer { padding-bottom: 5px; }
}

@media (max-width: 520px) {
  .auth-card { padding: 34px 21px 28px; }
  .chat-item { min-height: 65px; padding: 7px 8px; }
  .chat-item .avatar { width: 42px; height: 42px; }
  .chat-header-actions #muteChatBtn { display: none; }
  .composer-tools #emojiBtn { display: none; }
  .composer-tools #attachBtn,
  .composer-tools #voiceBtn { display: inline-grid !important; }
}

@media (max-width: 370px) {
  .xos-mobile-state { display: none; }
  .xos-mobile-head { grid-template-columns: minmax(0,1fr) auto; }
  .chat-header-actions #chatSearchBtn { display: none; }
  .xos-voice-hud > div { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .xos-topbar::after,
  .xos-live-chip > i,
  .xos-signal b,
  .xos-voice-hud > i,
  .xos-voice-hud > div b { animation: none !important; }
}